| GETPAGESIZES(3) | MidnightBSD Library Functions Manual | GETPAGESIZES(3) |
getpagesizes — get
system page sizes
Standard C Library (libc, -lc)
#include
<sys/mman.h>
int
getpagesizes(size_t
pagesize[], int
nelem);
The
getpagesizes()
function retrieves page size information from the system. When it is called
with pagesize specified as
NULL and nelem specified as 0,
it returns the number of distinct page sizes that are supported by the
system. Otherwise, it assigns up to nelem of the
system-supported page sizes to consecutive elements of the array referenced
by pagesize. These page sizes are expressed in bytes.
In this case, getpagesizes() returns the number of
such page sizes that it assigned to the array.
If successful, the getpagesizes() function
returns either the number of page sizes that are supported by the system or
the number of supported page sizes that it assigned to the array referenced
by pagesize. Otherwise, it returns the value -1
and sets errno to indicate the error.
The getpagesizes() function will succeed
unless:
The getpagesizes() function first appeared
in Solaris 9. This manual page was written in conjunction with a new but
compatible implementation that was first released in
FreeBSD 7.3.
This manual page was written by Alan L. Cox <alc@cs.rice.edu>.
| September 21, 2009 | midnightbsd-3.1 |